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college math

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the perimeter of a rectangular traffic sign is 120 inches Also, its length is 6 inches longer than its width

  • college math - ,

    L = Length

    W = Width

    P = Perimeter


    L = W + 6

    P = 2 L + 2 W = 2 ( L + W )

    120 = 2 ( W + 6 + W )

    120 = 2 ( 2 W + 6 )

    120 = 4 w + 12 Subract 12 to both sides

    120 - 12 = 4 W

    108 = 4 W Divide both sides by 4

    27 = W

    W = 27 in

    L = W + 6

    L = 27 + 6

    L = 33 in

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